Health Issues/Chemical Impact- part 2
Engage:
Pictures of a kidney, heart or nerve cells to generate discussion about
non-infectious diseases.
Explore:
Could be skipped in order to make sure there was plenty of time to accomplish
the new modified Elaborate activity.
Explain:
A student guide handout for this activity was created along with a rubric (see
attached). Students were provided with the research rather than going to the library.
Elaborate:
A “Seed Germination” activity was done instead of the 5E lesson plan (see
attached). This activity tests the affects 10 different chemicals have on radish seed
germination.
Disease / Disorder Awareness Project Planning Sheet
5 things you should know about
_________________________
For this project, you will research a disease/disorder associated with overexposure to toxic and/or nontoxic chemicals. You will work with a group to research and present your project. You must include all of the information on the rubric in order to get full credit. Use the planning sheet and rubric to make sure that you include the necessary information. Make sure to include 3-5 supporting details for each topic. Create an informational poster that summarizes your research on your disease. This poster will be used to inform your classmates about the causes, treatments and prevention of the disease.
1. Describe your disease/disorder. a. What is it?
b. What are some symptoms associated with this disease/disorder?
c. How does it affect your body?
d. Can all people get this disease? How can you get it?
e. Other information:
2. Describe the chemical exposure associated with your disease/disorder. a. What chemical contributes to this disease?
b. How could you be exposed to the chemical in order for it to cause the disease/disorder?
c. Other information:
3. Discuss the potency and dose of the chemical associated with your disease/disorder. Look at question 2a, give your instructor one or two specific chemicals that you want additional information on. A MSDS sheet for these will be provided.
a. How much of the chemical must you be exposed to in order to get the disease/disorder?
b. In general, how strong is the chemical?
c. Other information:
d. Other information:
e. Other information:
4. Describe the treatment of your disease/disorder. a. What type of treatment is required?
b. How long is treatment?
c. What happens after you get this disease/disorder?
d. Other information:
e. Other information:
5. List ways to reduce or eliminate exposure to the chemical a.
Disease / Disorder Awareness Project Rubric
Name of Disease or Disorder: ____________________________________________
3 2 1 0
Description of the disease or
disorder Describes disease/disorder with 3-5 details Describes disease/disorder with 1-2 details Describes disease/disorder but
has no supporting details Does not include Chemical exposure associated with the disease or disorder Discusses exposure
with 3-5 details Discusses exposurewith 1-2 details Discusses exposurewith no supporting details
Does not include
Potency and dose of the
chemical
Discusses potency and dose of the chemical with 3-5
details
Discusses potency and does with 1-2
details
Discusses potency and dose with no supporting details
Does not include
Treatment for the disease or disorder Discusses treatment for the disease/disorder with 3-5 details Discusses treatment for the disease/disorder with 1-2 details Discusses treatment for the disease/disorder with no supporting
details
Does not include
Reduction or elimination of exposure to the
chemical
Discusses ways to reduce or eliminate exposure with 3-5
details
Discusses ways to reduce or eliminate exposure with 1-2
details
Discusses ways to eliminate exposure with no supporting
details Does not include Presentation of information Presentation is neat/creative, and engaging. Obviously
prepared.
Presentation is neat/creative but students aren’t very engaged. Prepared.
Presentation is not very neat/creative and students aren’t very engaged. Not
very prepared. Neither neat/creative and students aren’t engaged. Shows little to no preparation Total _____________/18 = _____________%
Comments:____________________________________________________________________ _____________________________________________________________________________ ____________
Seed Germination Lab
Purpose:This lab will explore the effects of chemical solutions on radish seed germination.
Here are the liquids that are available to use in this experiment. Circle the one that your group will be using. EXPLAIN why you picked this liquid. PREDICT what you think will happen to the seeds.
Bleach Plant Food/Fertilizer Vinegar
Rubbing Alcohol Salt water Coffee
Ammonia Iodine Mouthwash
Hand Sanitizer
Explain:
Predict:
You will need to make six different 20mL solutions of your solution and water: 100% solution, 50% solution, 25% solution, 12.5% solution, 6.25% solution and 0% solution.
Materials:
Materials:
6 small plastic cups
1 25-mL graduated cylinder 1 pipette marked to 1.25 mL Chemical for testing
Water
Procedures:
1. Label your cups as the different percent solutions (100%, 50%, 25%, 12.5%, 6.25% and 0%)
2. For the 0 %, put 20 mL of water in the cup and 0.00 mL of chemical. 3. For the 6.25% cup, put 18.75 mL of water and 1.25 mL of chemical. 4. For the 12.5% cup, put 17.50 mL of water and 2.50 mL of chemical. 5. For the 25% cup, put 15.00 mL of water and 5.00 mL of chemical. 6. For the 50% cup, put 10.00 mL of water and 10.00 mL of chemical. 7. For the 100% cup, put 0.00 mL of water and 20.00 mL of chemical. 8. Place a folded paper towel in each of six small sandwich bags.
9. Fill each bag with the solution. Label each bag with the percent solution.
10. Arrange eight seeds on each paper towel. The seeds should sit on top of the paper towel so you can see them through your paper bag.
11. Seal the bags.
12. Set the bags on a tray and label it with your group’s names and period.
Day 1 Homework Questions:
1. Why are we doing this lab? What are we trying to find out?
2. What data can we observe (related to the purpose) that is quantitative?
3. What qualitative observations (related to the purpose) might be made?
4. What is the manipulated (independent) variable?
5. What is the responding (dependent) variable?
6. What variables are being controlled?
7. Write a hypothesis based on your manipulated and responding variables. (must be in the “if… then…” format)
8. Pick three of your controlled variables and explain how they would affect the results if they were not controlled.
1. 2. 3. Data Table:
Quantitative observations should include the TOTAL number of seeds that have not germinated. Qualitative observations should include all variables you came up with on homework question #3 and those we come up with as a class.
Graph:
Conclusion:
1. Look at your graph. At what concentration does the number of seeds germinated seem to be affected the most?
2. What does this imply about exposure to that concentration?
3. Did your results support your hypothesis? What specific data (you should include numbers here!!) supports or does not support this?
4. What would have been a better hypothesis?
5. If you were to redo this experiment, what would you change in order to find out more about your chemical?
% Solution DAY 1: Quantitative Observations
DAY 1: Qualitative Observations DAY 2: Quantitative Observations
DAY 2: Qualitative Observations DAY 3: Quantitative Observations
DAY 3: Qualitative Observations
0%
6.25%
12.5%
25%
50%
